In various organic electronic devices, interfaces formed by organic layers can play important roles. We have been studying various organic interfaces for clarifying their structure and electronic structure. In this talk, we will report our recent study of the effect of various types of doping for a variety of dopants – residual impurity, atmospheric gases, and metallic and organic intentional dopants. In particular, detailed and quantitative information about the effect of oxygen from the viewpoint of electronic structure was obtained for titanyl phthalocyanine (TiOPc), and the results corresponded well with the recent report of atmospheric effect on orga nic field effect transistor.
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Seki, K., Nishi, T., Tanaka, S. et al. Effects of Various Types of Doping on the Electronic Structure of Organic Interfaces. MRS Online Proceedings Library 871, 811 (2005). https://doi.org/10.1557/PROC-871-I8.11